Example get attribute single message, Example message format – Rockwell Automation 22-COMM-E EtherNet/IP Adapter User Manual

Page 56

Advertising
background image

6-6

Using Explicit Messaging

A Get Attribute Single message reads a single attribute value. In this
example, we read the value of a parameter in a PowerFlex 40 drive.

Example Message Format

Figure 6.4 Message Format for a Get Attribute Single Message

The following table identifies key settings for the message format:

Example Get Attribute Single Message

Configuration

Value

Description

Refer to . . .

Service Type

(1)

Service Code

(1)

Class
Instance
Attribute
Destination

(1)

The default setting for Service Type is “Custom,” which enables you to enter a Service
Code that is not available from the Service Type pulldown menu. When you select a
Service Type other than “Custom” from the pulldown menu, an appropriate Hex. value
is automatically assigned to the Service Code box which grays out (unavailable).

Get Attribute Single
e (Hex.)
f (Hex.)
39 (Dec.)
1 (Hex.)
ParameterReadValue

Read parameter data
Get_Attribute_Single
DSI Parameter Object
Parameter 39 - [Accel Time 1]
Parameter Value
Controller tag for response data

C-27
C-12
C-24
C-24
C-25

Advertising